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Sep 2, 2019

Heat transport theory goes universal

Posted by in categories: energy, quantum physics

A new unified theory for heat transport accurately describes a wide range of materials – from crystals and polycrystalline solids to alloys and glasses – and allows them to be treated in the same way for the first time. The methodology, which is based on the Green-Kubo theory of linear response and concepts from lattice dynamics, naturally accounts for quantum mechanical effects and thus allows for the predictive modelling of heat transport in glasses at low temperature – a feat never achieved before, say the researchers who developed it. It will be important for better understanding and designing heat transporting devices in a host of applications, from heat management in high-power electronics, batteries and photovoltaics to thermoelectric energy harvesting and solid-state cooling. It might even help describe heat flow in planetary systems.

“Heat transport is the fundamental mechanism though which thermal equilibrium is reached,” explains Stefano Baroni of the Scuola Internazionale Superiore di Studi Avanzati (SISSA) in Trieste, Italy, who led this research effort. “It can also be thought of as the most fundamental manifestation of irreversibility in nature – as heat flows from warm areas in the same system to cooler ones as time flows from the past to the future (the ‘arrow of time’). What is more, many modern technologies rely on our ability to control heat transport.”

However, despite its importance, heat transport is still poorly understood and it is difficult to simulate the heat transport of materials because of this lack of understanding. To overcome this knowledge gap, researchers employ various simulation techniques based on diverse physical assumptions and approximations for different classes of material – crystals on one hand and disordered solids and liquids on the other.

Sep 2, 2019

NASA space probe shot an asteroid with lasers

Posted by in category: space

Pew face_with_colon_three


NASA’s OSIRIS-REx mission has been steadily progressing since the spacecraft arrived at the diamond-shaped space rock known as Bennu a few months back, but not everything has gone completely to plan.

The rock ended up being far more, well, dirty than NASA originally expected. Bennu’s surface is absolutely packed with debris, posing a challenge for NASA’s team that still has to decide where to have the probe touch down on the asteroid to collect samples. Now, using a laser instrument built into OSIRIS-REx, NASA has a detailed look at how dangerous the surface truly is.

Continue reading “NASA space probe shot an asteroid with lasers” »

Sep 2, 2019

Asteroid danger: ‘100% chance of impact’ space expert alerts in ‘life or death’ warning

Posted by in category: space

AN ASTEROID is “100 percent” certain to strike Earth even if we cannot predict when or where it will happen, according to a space expert who told Express.co.uk it is a “matter of life and death”.

Sep 2, 2019

Southwest China Puts on Dazzling Drone Show

Posted by in categories: business, drones

The night sky in Guiyang, the capital city of southwest China’s Guizhou province, has been a little bit brighter since Friday as 526 drones lit up the sky with a spectacular performance daily.
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Sep 2, 2019

World Record: 175 mins flight time and 100 KM range

Posted by in categories: business, drones, energy

https://youtu.be/qqtv4XAWeC8

Where to get the GAIA 160-Hybrid drone: https://www.foxtechfpv.com/gaia-160-hybrid-hexacopter-arf-combo.html

We did it!!!!!!
Broke the Flight Time Record!!!!!
This is a historic moment for UAV drone.
Foxtech GAIA 160-Hybrid has made aviation history by completing the 100km crossing sea bay flight in 180 minutes.
On 9th September, Foxtech team successfully completed the crossing sea bay flight with GAIA 160-Hybrid from changdao to dalian. GAIA 160-Hybrid took off from a yacht in changdao and landed on a coast of Dalian, the total range is 100km, this is the longest single flight of a hexacopter in the World! Foxtech GAIA 160-Hybrid hexacopter broke the flight time record!
FOXTECH GAIA 160-Hybrid hexacopter has an onboard 2000w generator that offers plenty of power to 6 very high efficiency motors to ensure a long flight time. It is installed with redundancy flight controllers, three GPS and a full range of optional equipments like RTK GPS, 20km datalink, parachute, secondary radio control to make this drone very reliable and very safe.
Foxtech team arrived in changdao on 5 September, but due to the heavy wind and bad weather conditions the flight was actually delayed, we have to stop the mission and wait for another good weather to try again. Finally, Foxtech team was ready to make their attempt on 9 September. Departing from a yacht in changdao, weather was cooperative and all was going well.
Foxtech GAIA 160-Hybrid successfully took off from the yacht, with GPS guidance and automated flight, the drone could fly independently. And the drone was accompanied by a yacht staying within a range of 500 meters, so that our operator could control the aircraft at any time. During the flight, the wind was rising, force 7 grades, the wind speed is about 17m/s. But with the robust stability of GAIA 160-Hybrid and rich experience of our technicist, GAIA 160-Hybrid overcame the adverse weather conditions, and just over 3 hours after takeoff, GAIA 160-Hybrid landed safely in a coast of Dalian.
The journey was filled with challenges, because any type of adverse wind will have a
severe impact on the drone. So this time the successful flight dramatically proved the.
reliability and potentials of GAIA 160-Hybrid, proved that Foxtech GAIA 160-Hybrid is a high-performance flying platform which is able to adapt many complicated environment, especially the strong breeze and gale weather. A longer flight time coupled with good stability of GAIA 160-Hybrid opens a wide range of new commercial possibilities for businesses such as inspection of offshore platforms, search and rescue, power line inspection etc.

Sep 2, 2019

Tesla Pickup Truck Surfaces As Rad SpaceX Off-Roader On Mars

Posted by in categories: space travel, sustainability

What happens when you combine a Tesla pickup truck with a bit of off-road SpaceX flair? The answer is in this Tesla truck render.

If the render looks familiar it’s because we’ve seen a similar Tesla truck render from the same render artist before. However, this SpaceX off-road version didn’t register on our radar the first time around.

Sep 2, 2019

Is China’s Upcoming ‘Super’ Stealth Fighter the End of the U.S. F-35?

Posted by in categories: futurism, military

Are metamaterials the way of the future?

Sep 2, 2019

Police hijack a botnet and remotely kill 850,000 malware infections

Posted by in categories: cryptocurrencies, cybercrime/malcode

In a rare feat, French police have hijacked and neutralized a massive cryptocurrency mining botnet controlling close to a million infected computers.

The notorious Retadup malware infects computers and starts mining cryptocurrency by sapping power from a computer’s processor. Although the malware was used to generate money, the malware operators easily could have run other malicious code, like spyware or ransomware. The malware also has wormable properties, allowing it to spread from computer to computer.

Since its first appearance, the cryptocurrency mining malware has spread across the world, including the U.S., Russia, and Central and South America.

Sep 2, 2019

Rejuvenation Roundup August 2019

Posted by in category: life extension

It’s once again time for our customary appointment with a monthly recap of the most interesting news from the world of aging and rejuvenation research. Interviews and talks from our July conference, as well as from UA2019, are being published, and new events and initiatives are popping up around the world; slowly but steadily, the field is unquestionably picking up.

LEAF News

Sep 2, 2019

Quantum Darwinism spotted in diamond spins

Posted by in categories: evolution, quantum physics

A handful of spins in diamond have shone new light on one of the most enduring mysteries in physics – how the objective reality of classical physics emerges from the murky, probabilistic quantum world. Physicists in Germany and the US have used nitrogen-vacancy (NV) centres in diamond to demonstrate “quantum Darwinism”, whereby the “fittest” states of a system survive and proliferate in the transition between the quantum and classical worlds.

In the past, physicists tended to view the classical and quantum worlds as being divided by an abrupt barrier that makes a fundamental distinction between the familiar macroscopic (classical) and the unfamiliar microscopic (quantum) realms. But in recent decades that view has changed. Many experts now think that the transition is gradual, and that the definite classical states we measure come from probabilistic quantum states progressively (although very quickly) losing their coherence as they become ever more entangled with their environment.

Quantum Darwinism, put forward by Wojciech Zurek of Los Alamos National Laboratory in New Mexico, argues that the classical states we perceive are robust quantum states that can survive entanglement during decoherence. His theoretical framework posits that the information about these states will be duplicated many times and disseminated throughout the environment. Just as natural selection tells us that the fittest individuals in a species must survive to reproduce in great numbers and so go on to shape evolution, the fittest quantum states will be copied and appear classical. This redundancy means that many individual observers will measure any given state as having the same value, so ensuring objective reality.